← Doubles and halves game lesson New set →

Doubles and Halves Trick Worksheet

Maths tricks trick 5: Doubles and halves game · Set 959 · 40 questions
TalentJR

The trick (Split and double): Split the number into tens and ones: 37 = 30 + 7. Double each part (30 → 60, 7 → 14) — or halve each part. Add the two answers: 60 + 14 = 74.

NameDateTime takenScore ___ / 40
  1. 1.Double 62 =
  2. 2.Double 22 =
  3. 3.Double 11 =
  4. 4.Double 29 =
  5. 5.Double 89 =
  6. 6.Half of 64 =
  7. 7.Double 83 =
  8. 8.Half of 74 =
  9. 9.Double 74 =
  10. 10.Double 25 =
  11. 11.Half of 192 =
  12. 12.Half of 198 =
  13. 13.Half of 142 =
  14. 14.Half of 152 =
  15. 15.Half of 162 =
  16. 16.Half of 46 =
  17. 17.Double 33 =
  18. 18.Double 86 =
  19. 19.Half of 56 =
  20. 20.Half of 96 =
  21. 21.Double 12 =
  22. 22.Double 17 =
  23. 23.Half of 62 =
  24. 24.Half of 78 =
  25. 25.Double 81 =
  26. 26.Double 54 =
  27. 27.Double 44 =
  28. 28.Double 69 =
  29. 29.Double 35 =
  30. 30.Double 39 =
  31. 31.Half of 72 =
  32. 32.Double 41 =
  33. 33.Double 87 =
  34. 34.Double 78 =
  35. 35.Double 56 =
  36. 36.Double 53 =
  37. 37.Double 37 =
  38. 38.Double 91 =
  39. 39.Double 48 =
  40. 40.Double 85 =

Answer key

  1. 124
  2. 44
  3. 22
  4. 58
  5. 178
  6. 32
  7. 166
  8. 37
  9. 148
  10. 50
  11. 96
  12. 99
  13. 71
  14. 76
  15. 81
  16. 23
  17. 66
  18. 172
  19. 28
  20. 48
  21. 24
  22. 34
  23. 31
  24. 39
  25. 162
  26. 108
  27. 88
  28. 138
  29. 70
  30. 78
  31. 36
  32. 82
  33. 174
  34. 156
  35. 112
  36. 106
  37. 74
  38. 182
  39. 96
  40. 170

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks